python实现定时显示天气预报信息

from datetime import datetime
import json
import requests
import urllib.request  # 需要安装 urllib 库
from bs4 import BeautifulSoup  # 需要安装 bs4 库
import os
from apscheduler.schedulers.blocking import BlockingScheduler


def get_iciba_everyday_chicken_soup():
    url = 'http://open.iciba.com/dsapi/'
    r = requests.get(url)
    all_content = json.loads(r.text)  # 获取到json格式的内容，内容很多,json.loads: 将str转成dict
    English = all_content['content']  # 提取json中的英文鸡汤
    Chinese = all_content['note']  # 提取json中的中文鸡汤
    everyday_soup = English + '
' + Chinese  # 合并需要的字符串内容
    return everyday_soup  # 返回结果


# print(get_iciba_everyday_chicken_soup())


def get_weather(city_pinyin):
    # 声明请求头，模拟真人操作，防止被反爬虫发现
    #header需要F12抓取下信息
    header = {
        "User-Agent": "*******"}
    # 通过传入的城市名拼音参数来拼接出该城市的天气预报的网页地址
    #city_pinyin='zhengzhou'
    website = "https://www.tianqi.com/" + city_pinyin + "/"
    req = urllib.request.Request(url=website, headers=header)
    page = urllib.request.urlopen(req)
    html = page.read()
    soup = BeautifulSoup(html.decode("utf-8"), "html.parser")
    # html.parser表示解析使用的解析器
    nodes = soup.find_all('dd')
    tody_weather = [node.text.strip() for node in nodes]  # 定义一个列表，并遍历nodes
    tody_weather[0] = tody_weather[0][:2]  # 去除多余字符
    # 去除字符串中的空行:
    tianqi = " ".join([s for s in tody_weather if s.strip("
")])
    print(tianqi)
    return tianqi
    # 返回结果


# 调用封装号好的函数获取天气预报，参数‘zhengzhou’是郑州的拼音：
# print(get_weather("zhengzhou"))


if __name__ == '__main__':
    scheduler = BlockingScheduler(timezone="Asia/Shanghai")
    scheduler.add_job(get_weather, 'interval', seconds=3,args=['zhengzhou'])
    print('Press Ctrl+{0} to exit'.format('Break' if os.name == 'nt' else 'C   '))
    try:
        scheduler.start()
    except(KeyboardInterrupt, SystemExit):
        pass